Question No:1
Pollution is any undesirable change in physical, chemical or biological characteristics of:
[A] Air
[B] Land
[C] Water or soil
[D] All of the above
Question No:2
Agents which cause pollution are known as:
[A] Mutants
[B] Carcinogens
[C] Pollutants
[D] Allergens
Question No:3
In which year did Government of India pass the Environment (Protection) Act to protect and improve the quality of environment (air, water and soil)?
[A] 1978
[B] 1986
[C] 1981
[D] 1987
Question No:4
What are the effects of air pollution on plants?
[A] Growth retardation
[B] Decrease in yield
[C] Premature death
[D] All of the above
Question No:5
Which system of humans and animals are affected mostly by air pollution?
[A] Respiratory system
[B] Digestive system
[C] Circulatory system
[D] Excretory system
Question No:6
Harmful effects of air pollution depends on:
[A] Concentration of pollutants
[B] Duration of exposure
[C] Type of organism
[D] All of the above
Question No:7
The most widely used and effective device fox removing particulate matter is:
[A] Arrester
[B] Scrubber
[C] Electrostatic precipitator
[D] Converters
Question No:8
ESP removes approx _____% of particulate matter present in exhaust from a thermal power plant.
[A] 60%
[B] 80%
[C] 99%
[D] 85%
Question No:9
Which is incorrect about ESP (Electrostatic Precipitator)?
[A] Corona produces electrons
[B] Collecting plates are grounded, so use to attract the charged dust particle
[C] Velocity of air between the plates must be low
[D] Electrodes wires that are maintained at hundred volts produces corona.
Question No:10
Scrubber is used to remove following gas
[A] SO2
[B] N2
[C] O2
[D] CO2
Question No:11
According to CPCB which particulate size causes greatest harm to human health?
[A] 2.5 µm
[B] 3.5µm
[C] 4.5 µm
[D] 5.2 µm
Question No:12
PM or less than that in diameter in air causes:
[A] Irritation and inflammation in lungs
[B] Damage to lungs
[C] Premature deaths
[D] All of the above
Question No:13
______ is a major cause of air pollution in metro cities
[A] Factory
[B] Automobiles
[C] Smoking
[D] Thermal power plant
Question No:14
Automobile pollution is reduced by using:
[A] Lead-free petrol or diesel
[B] Catalytic converters
[C] Both (a) and (b)
[D] None of the above
Question No:15
The metal used in catalytic converter in automobiles is:
[A] Platinum
[B] Palladium
[C] Rhodium
[D] Any of the above
Environmental Issues Mock Test-1
CategoriesNEET Biology